Hi ,all
I wanted to port uclinux to s3c44b0x,but I met a problem when compilation.
I downloaded uclinux-dist-2090618.tar.bz2and arm-elf-gcc 2.95.3.The
following code is from arch/armnommu/mach-s3c44b0x/fiq.c
****************************************************************************************
void __attribute__ ((naked)) _fiq_wrapper(void)
{
asm("\
mov r8, lr \n\
stmdb sp!, {r0-r8} /* save unbanked R0...R7+R8 */ \n\
3: \n\
ldr r0, %[INTPND] \n\
ldmia r0, {r0-r2} /* R0=INTPND, R1=INTMOD, R2=INTMSK */ \n\
and r0, r0, r1 /* ignore IRQs */ \n\
bic r0, r0, r2 /* ignore masked interrupts */ \n\
\n\
cmp r0, #0 /* sanity check: no pending FIQ ? */ \n\
beq 2f \n\
\n\
/* seek for the FIQ handler through the bitmask in R1 */ \n\
/* R0 = bitmask with pending FIQ */ \n\
/* R1 = bitmask for checking */ \n\
/* R2 = handler */ \n\
/* R3 = working register */ \n\
/* R4 = pointer to handler table */ \n\
ldr r4, %[_fiq_table] \n\
1: \n\
ldmia r4!, {r1, r2} \n\
and r3, r0, r1 \n\
cmp r3, r1 \n\
bne 1b \n\
\n\
ldr r3, %[INTACK] /* acknowledge the FIQ */ \n\
str r1, [r3] \n\
\n\
mov lr, pc \n\
mov pc, r2 /* and execute the handler */ \n\
b 3b \n\
2: \n\
ldmia sp!, {r0-r8} /* restore unbanked R0...R7+R8 */ \n\
mov lr, r8 \n\
subs pc, r14, #4 /* return from FIQ, restore SPSR */ \n\
"
:
:'( /: [ _fiq_table ] "m" (_fiq_table),/
[INTPND] "m" (S3C44B0X_INTPND),
[INTACK] "m" (S3C44B0X_F_ISPC)
: "memory"
);
}
/****************************************************************************/
static inline void _set_fiq_stack(unsigned int fiq_sp)
{
asm("\
mov r3, %[fiq_sp] \n\
mrs r2, cpsr /* switch to FIQ mode */ \n\
bic r1, r2, #0x1F /* CPSR_MODE_BITS */ \n\
orr r1, r1, #0x11 /* CPSR_FIQ_MODE */ \n\
msr cpsr, r1 \n\
bic sp,r3,#0x03 /* sp is passed in R0 */ \n\
msr cpsr,r2 /* restore previous CPU mode */ \n\
"
:
:'( /: [ fiq_sp ] "r" (fiq_sp)/
: "r1", "r2", "r3"
);
}
******************************************************************************
The following are error infomation printed:
fiq.c: In function `_fiq_wrapper':
fiq.c:112: parse error before `['
fiq.c: In function `_set_fiq_stack':
fiq.c:132: parse error before `['
I have noted them with :'( .what's wrong ? my arm-elf-gcc is too old ?
I can not figure it out ,so I need your help.
Thanks in advance!
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